The K990DM (K990) is a 45% K unknown sparky motor from Aerotech.
| Average Thrust: | 870.7993 N |
| Certified By: | Tripoli Rocketry Association |
| Class: | 45% K |
| Delays: | 14 seconds |
| Designation: | K990DM |
| Diameter: | 54.0000 mm |
| Length: | 598.0000 mm |
| Letter: | K |
| Manufacturer: | Aerotech |
| Name: | K990 |
| Peak Thrust: | 1,068.8280 N |
| Status: | In-Production |
| Thrust Duration: | 2.1370 s |
| Total Impulse: | 1860.8982 Ns |
| Total Weight: | 2109.0000 g |
| Type: | Unknown |
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